Update AssessmentPartOne.java

src/AssessmentPartOne.java

-
 public class AssessmentPartOne {
 
 	public int biggestOfThree(int num1, int num2, int num3)
@@ -46,21 +45,26 @@ public class AssessmentPartOne {
 		
 		int sumOfSquares = 0;
 		
-		int negativeAnswer = -1;   //
-		
+		int negativeAnswer = -1;   //This is the number that will be return if range starts with a negative number
 		
-		if (start < 0)
+		if ((start < 0) || (end < 0))
 		{
 			return negativeAnswer;
-			
 		}
 		
+		if (end-start == 1)
+		{
+			return negativeAnswer;
+		}
+		if (start > end) {
+			return negativeAnswer;
+		}
 		else
-		{ for (int a = start; a < end; a++)
+		{ for (int a = start +1; a < end; a++) {       //Loop used to add all the numbers beetween the first and last int 
 			
+			sumOfSquares += a;
 		}
 		}
 		return sumOfSquares;
-	
-	
+	}
 }